This is a regular size heated cedar house, it measures 18"x18"x25"h on the outside and 13"x14"x13"h on the inside. All of the exterior siding and trim is cedar and the base is treated plywood. The roof is made of a durable composite material that is stained the color of Cedar.The floor is vinyl with removable carpet on top. The interior walls are lined with CARPET. The house is completely insulated and is heated with a 50 watt INFARED bulb installed in a recessed light fixture so it is out of Kitty's way. There is an adjustable thermostat located right inside the door where the temp can be adjusted. The bulb only comes on when heat is needed, there is also a thermometer mounted on an interior wall. The front opens for easy access and cleaning. This DOOR IS WOOD FRAME WITH A VINYL FLAP. House has a 20 ft cord. SHIPPING WEIGHT 50LBS OVERSIZE 23"X22"X27"